Active clinical trials for "Peri-Implantitis"

To evaluate a novel technique of bone regeneration and simultaneous implant placement in severely damaged sockets.

Various types of periodontal probes (e.g., metal probes, plastic/bendable probes, electronic periodontal probes) are used for peri-implant pocket depth registration; however, depending on the shape and size of the prosthetic restoration an accurate peri-implant pocket registration might be impeded with standard metal probes. There is currently no systematic assessment of which probe is more accurate in peri-implant pocket registration. Therefore, peri-implant pocket registration of 50 patients with a screw-retained prosthetic restoration will be recorded with 3 different periodontal probes; i.e., with a metal probe, with a plastic probe, and with an automatic periodontal probe, before and after removal of the prosthetic restoration.

The goal of this observational study is to compare the prevalence of peri-implantitis between periodontitis and nonperiodontitis sites treated with alveolar ridge preservation. The main question it aims to answer is: • whether the occurrence of PI is associated with reasons for dental extraction because of periodontitis and nonperiodontitis after alveolar ridge preservation. Researchers will compare the prevalence of peri-implantitis between periodontitis and nonperiodontitis sites treated with alveolar ridge preservation.

The existing records of a private practice limited to the practice of periodontology were reviewed to locate patients who had been diagnosed with peri-implantitis (failing dental implant) and had been surgically treated utilizing enamel matrix derivative (Commercially available FDA product Emdogain sold by Straumann USA). Various clinical factors were gathered from the existing records. Some of the factors recorded were: retention of the implant, presence of bleeding, presence of further damage, and presence of inflammation. All patients had signed an informed consent for treatment and the anonymous use of their data for research purposes. All HIPA requirements were followed.

Macrophage surface markers (CD80, CD163 and CD206) will be evaluated in periodontally healthy gingiva, healthy peri-implant mucosa, and periodontitis and peri-implantitis lesions.

Bleeding on probing demonstrated to have high specificity with certain level of sensitivity to detect periodontal disease. Again, understanding the weak hemidesmosome attachment to the implant surface is imperative to discern on the probe penetration extent and subsequent bleeding. In the presence of inflammation, bleeding should be present indicating high sensitivity when probing deeper sites; nevertheless the lack thereof in healthy condition does not seem to translate high specificity. In this sense, it is noteworthy to mention that the mucogingival shift after implant placement often decreases the presence of keratinized mucosa, triggering a greater inflammatory condition on the peri-implant tissues. Thereupon, bleeding on probing, although might reliably indicate presence of disease, it does not seem to be a suitable diagnostic parameter. On the other side, suppuration characterizes the necrosis of peri-implant tissues, being rich in polymorphonuclear cells and as such, a sensitive indicator of bone turnover. In this sense, it must be noted that, if detected in early stages where bone resorption has not occurred yet, it might be a consequence of a foreign body reaction (i.e., residual cement or floss). Therefore, in the diagnosis of peri-implantitis, radiographic examination must be always incorporated to the clinical assessment as the 'gold standard'. Hence, the aim of this case-control study was to assess the diagnostic accuracy of peri-implantitis-related clinical parameters compared to otherwise healthy dental implants.

The objective of this non-interventional long-term follow-up observation is to evaluate the long-term sustainability of two surgical treatments of peri-implantitis with and without Geistlich Bio-Oss® and Geistlich Bio-Gide® from a previous study

To report 10-years follow up of patients following the surgical treatment of peri-implantitis and to identify possible risk indicators for the progression of disease during supportive peri-implant therapy.

The main objective of the present clinical study project, of a cross-sectional observational nature, is to evaluate the presence of submucosal cement residues through endoscopic visualization in clinical situations with peri-implant disease. The secondary objective is to investigate the potential correlation between the severity of the pathological condition and the spatial position of cement residues in relation to the implant-prosthetic unit. For each subject, the following data were collected: gender, age, periodontal history, smoking habits, reasons for implant rehabilitation (trauma, caries, periodontitis, agenesis, other), the position of the implant in the oral cavity, elapsed time between prosthetic rehabilitation and pathological condition. If the deposit was recognized as cement residue, its presence was recorded, and the anatomical position of the cement residue (mesial, distal, lingual/palatal, vestibular) and the spatial position of cement residues in relation to the implant-prosthetic unit were collected.

A new classification system of periodontal and peri-implant diseases and conditions was proposed by consensus of world experts in 2017. Since then there has been ongoing debates among periodontists regarding the application of the new classification. This study aims to shed light on the current understanding of the new classification among Egyptian periodontists.